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  1. Hadoop Common
  2. HADOOP-14659

UGI getShortUserName does not need to search the Subject

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.0.0-alpha
    • 2.9.0, 3.0.0-beta1, 2.8.2
    • common
    • None
    • Reviewed

    Description

      UGI#getShortUserName searches the subject for the User instance. It's not cheap to iterate a synchronized set, copy matches into a new set, then iterating that set. The UGI ctor already set the User into a final field...

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            daryn Daryn Sharp Assign to me
            daryn Daryn Sharp
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